1.For the elderly and the other weak group to study.
2.Prevent quivers,and can fix the reading page.

1.Automatically focus;                        

2.Of the enlargement range from 2 to 75 (21”LCD);                                              

3.Of the mouse shape cameras;                  

4.Of colour, black/white and negative mode;     

5.Can adjuste the image and the brightness;     

6.With brackets,be able to achieve writing function;

7.camera lens F=15.8mm; Effective pixel: VGA 35 ten thousand;

8.videography range:max 200mm×200mm;

9.Image sensor: 1/4"CMOS,PAL color system;

10.illuminance:1 LUX;

11.white balance:2500K-7000K,Automatically;       

12.horizontal resolution:480         

13.brightness: 10Lux;

14.plus-minus:yes;

15.backlight compensation:auto;

16.color adjust: built-in;

17.Frozen image, Ultra-high contrast;           

18.Resolution: (640 x 480);

19.Illumination:0.06W x 4(LED);

20.Dxl: 130 x 69 x 64 mm;

21.weight:90g

22.Directly used for computer or television

23.Both wireless and wired

24.all directions